Lock for holding a spacing slug below the level of type faces



PE FACES Sept. 25, 1956 s. B. HARPER LOCK FOR HOLDING A SPACING SLUG BELOW THE LEVEL OF TY Filed April 13, 1954 a, a, 6 W

Z 3 a m 3 3% g QW g, warm, 8 4 w a MM United States PatentO LOCK FOR HOLDING A SPACIN G SLUG BELOW THE LEVEL OF TYPE FACES Samuel B. Harper, Shreveport, La. Application April 13, 1954, Serial No. 422,929 4 Claims. (Cl. 101-403) This invention relates to improved means for holding a spacing slug below the level of type faces and has for its primary object to provide locking means to prevent a spacing slug from working upwardly toward the type faces during the taking of impressions of the composition.

Another object is to eliminate the possibility of impressing a splotch of ink on the paper between columns of printed matter and the consequent spoilage of the sheet.

A further object is to provide improved means for locking the upper face of a spacing slug below the type faces of adjacent type face bearing slugs and to establish a definite spacing between the upper face of the spacing slug and the type faces.

The above and other objects may be attained by employing this invention which embodies among its features a body defining a ridge, legs carried by the body and extending downwardly and outwardly therefrom adjacent opposite sides thereof, and type slug engaging teeth carried by the legs and extending outwardly from the edges thereof remote from the body.

Other features include spaced parallel rows of type body penetrating teeth adapted to rest on the top of a type spacing slug between type slugs carrying type faces, a body disposed between the type slugs and above the spacing slug, and legs carried by the body and connected to the teeth for driving the rows of teeth apart and cansing them to penetrate the type slugs on opposite sides of the spacing slug when the body is advanced toward the spacing slug.

In the drawings:

Figure 1 is a perspective view of a lock embodying the features of this invention;

Figure 2 is a top plan view of the lock illustrated in Figure 1;

Figure 3 is an end view of the lock illustrated in Figures 1 and 2;

Figure 4 is a side view of the lock;

Figure 5 is an enlarged sectional view through spaced type slugs showing this lock in place preparatory to locking the spacing slug against movement toward the type faces; and

Figure 6 is a view similar to Figure 5, showing the lock extended and the teeth thereof penetrating the type slugs bearing the type faces.

Referring to the drawings in detail, the illustrated lock designated generally 10 comprises an elongated plate-like body 12" of deformable material bent along a longitudinal center line to define a ridge from opposite side edges of which extend legs 14 and 16 which diverge as they recede from the ridge and carry adjacent their edges remote from the ridge rows 18 and 20, respectively, of teeth, which are in a common plane. The teeth 18 and 20 are sharpened at their outer ends so as to be able to penetrate the type metal from which type slugs are cast.

As shown in Figure 5, a pair of type slugs 22 and 24 is separated from each other by a spacing slug 26. The type slugs 22 and 24, respectively, carry type faces 28 and 2,764,088 Patented Sept. 25, 1956 30, and the spacing slug 26 is of less height than the type slugs 22 and 24 so that the outer face 32 thereof lies in inwardly spaced relation to the type faces 28 and 30. Under ordinary circumstances, when the type is set with a spacing slug 26 set between the type slugs 22 and 24, the spacing slug will frequently work toward the type faces 28 and 30 so that when an impression is taken from the type faces, the slug will produce an inkspot or blotch on the paper so as to render the impression worthless and require that the pages having such splotches be destroyed. By employing the lock 10, previously described, and depositing it on the exposed face 32 of the spacing slug 26, as illustrated in Figure 5, the teeth 18 and 20 will be engaged with the type slugs 22 and 24, and when a blow is struck upon the ridge 12, the legs 14 and 16 will be spread away from each other, so that the teeth 18 and 20 will penetrate the type slugs 22 and 24 adjacent to the face 32 of the spacing slug 26, as shown in Figure 6. With the teeth thus penetrating the type slugs, it will be evident that the spacing slug 26 will be definitely located and locked at a predeten mined distance from the type faces 28 and 30 and can not ride upwardly toward the type faces to create an unsightly blotch on impressions taken from the composition.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What is claimed is:

1. In combination, a pair of laterally spaced longitudinal type slugs having type faces and confronting sides, a spacing slug positioned between and engaging the type slugs, said spacing slug having a face spaced inwardly from the type faces, and a lock comprising a body engaging the spacing lug face and indenting means along opposite sides of the body and embedded in the confronting faces of the type slugs.

2. In combination, a pair of laterally spaced longitudinal type slugs having type faces and confronting sides, a spacing slug positioned between and engaging the type slugs, said spacing slug having a face spaced inwardly from the type faces, and a lock comprising a body engaging the spacing lug face and indenting means along opposite sides of the body and embedded in the confronting faces of the type slugs, said body being of platelike form and of deformable material and comprising a central longitudinal ridge, divergent legs along opposite sides of the ridge, said legs diverging toward the face of the spacing slug and having free edges.

3. In combination, a pair of laterally spaced longitudinal type slugs having type faces and confronting sides, a spacing slug positioned between and engaging the type slugs, said spacing slug having a face spaced inwardly from the type faces, and a lock comprising a body engaging the spacing lug face and indenting means along opposite sides of the 'body and embedded in the confronting faces of the type slugs, said body being of plate-like form and of deformable material and comprising a central longitudinal ridge, divergent legs along opposite sides of the ridge, said legs diverging toward the face of the spacing slug and having free edges, said indenting means comprising teeth on the free edges of the legs, said teeth being in a common plane.

4. In combination, a pair of laterally spaced longitudinal type slugs having type faces and confronting sides, a spacing slug positioned between and engaging the type slugs, said spacing slug having a face spaced inwardly from the type faces, and a lock comprising a body engaging the spacing lug face and indenting means along opposite sides of the body and embedded in the eonfrontfrom each other and force the indenting means into the ing faces of the type slugs, said body being of plate-like confronting faces of the type slugs.

form and of deformable material and compriisng a cen- References Cited in the file of this patent tral longitudinal ridge, divergent legs along opposite sides of the ridge, said legs diverging toward the face of 5 UNITED STATES PATENTS the spacing slug and having free edges, said indenting 606,656 Gally July 5, 1898 means comprising teeth on the free edges of the legs, said 896,381 Hanigan Aug. 18, 1908 teeth being in a common plane, said legs being initially 1,225,712 Hoskins May 8, 1917 disposed at an angle to merely engage the indenting 1,847,847 Poeppelmeier Mar. 1, 1932 means with the confronting sides of the type slugs, said 10 1,963,585 Kittle June 19, 1934 body being arranged to be compressed toward the face 2,175,969 Nottingham Oct. 10, 1939 of the spacing slug in a manner to spread the legs away 2,681,616 Sobisch June 22, 1954 

